The nofib-analyze package

The nofib benchmark suite is the standard benchmark suite
to measure Haskell compilers. The nofib-analyze program can parse
the logs of nofib runs, and compare their output, producing tables in text,
LaTeX or HTML format.

nofib-analyze is readily available in your GHC source tree in
nofib/nofib-analyse, so usually, you will not need this packages. It might
however be handy when you need to analyze log files without having a checked-out
copy of GHC around.